signal behavior and restarting system calls

Stephen Williams (steve@icarus.com)
Sun, 24 Jan 1999 09:54:55 -0800

> undefining GNU or something like that. The GNU C library by default doesn't
> interrupt the read or write call when the process receives a signal. Its a
> nice feature, it allows me to leave out the error handling code that has to
> take care of this problem on SunOS and others by restarting the same system
> call; adjusted for any changes.

mwood@IUPUI.Edu said:
> Very nice, but sadly nonportable. Sounds like we need an all-Unix
> conference to hash out an acceptable common solution, unless the
> majority really, really loves writing #ifdef s.

Actually, with proper manipulation of sigaction, you get the restart behavior
out of SunOS, and I believe most other UNICES as well. I think it is
SA_RESTART or somesuch. I forget.

-- 
Steve Williams                "The woods are lovely, dark and deep.
steve@icarus.com              But I have promises to keep,
steve@picturel.com            and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."






-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/